JP5665757B2 - Dry flue gas desulfurization system with liquid distributor for dual feed nebulizer - Google Patents

Description

  This application claims priority from US Provisional Application No. 61 / 122,227, filed Dec. 12, 2008, the entire contents of which are incorporated herein by reference.

  The present invention relates generally to a dual feed atomizer liquid distributor, and more particularly to a dry flue for treating a flue gas stream provided with a dual feed atomizer liquid distributor. The present invention relates to a gas desulfurization system.

  Combustion of fuel, especially combustion of carbonaceous materials such as fossil fuels and wastes, impurities such as mercury (Hg), sulfur oxide (SOx), nitrogen oxide (NOx), and particles such as fly ash These impurities and particles need to be reduced or removed to an acceptable level before releasing the flue gas into the environment. In accordance with regulations set in many jurisdictions, many processes and devices have been developed to remove or reduce impurities and particles contained in flue gases.

  A typical method of reducing flue gas particles, Hg, NOx, and SOx impurities from a boiler that generates steam from the combustion of fuel is with a flue gas treatment device. Such devices include electrostatic precipitators (ESPs), fabric filter bag houses, catalyst systems, wet flue gas desulfurization systems, and / or dry flue gas desulfurization systems (dry). flue gas desulfurization system) (wet flue gas desulfurization system and dry flue gas desulfurization system are referred to as WFGD and DFGD, respectively).

  Some flue gas flow treatment systems use a DFGD system to bring reagent slurry or solution into contact with the flue gas and react with SOx therein to promote removal of acidic components such as SOx. ing. Current DFGD systems use a spray-drying absorber with a nebulizer system that receives the reagent slurry (typically with a diluent).

  When a reagent slurry or solution is supplied to the nebulizer system along with the diluent, a scale is formed in the supply tube. Once the scale is formed, the plant or system will be shut down for cleaning and maintenance. As will be appreciated, shutting down a plant or system and associated system and / or plant cleaning and maintenance is time consuming and costly. Systems and processes that reduce the formation of scale in the atomizer system reduce the number of times that the plant or system is shut down for cleaning or maintenance.

According to aspects described herein, a support member, a spray plate rotatably coupled to the support member, a first supply line for delivering reagent slurry to the delivery region, and a diluent to the delivery region A spray system for use in a spray-drying absorber having a second supply line for delivering to the scale, wherein the delivery region is to reduce the formation of scale caused by the interaction of the reagent slurry and the diluent. A nebulizer system is provided in the nebulizer system that is positioned proximate above the spray plate and in which the reagent slurry and the diluent interact in the delivery region .

According to another aspect described herein, a method for reducing scale formation in a nebulizer system comprising a support member, a delivery region, a spray disc, a first supply line, and a second supply line. Providing a nebulizer system in the flue gas treatment system, sending reagent slurry to the nebulizer system, allowing the reagent slurry to be delivered to the delivery region through the first supply line, and diluting liquid to the Sending to a nebulizer system to allow the diluent to be delivered to the delivery region through the second supply line, and reducing scale formation caused by the interaction of the reagent slurry and the diluent as the delivery region close above the spray plate in said nebulizer system disposed stationary apparatus to, in the delivery area How serial reagent slurry and said diluent and a step of interacting is provided.

  The above described and other features are exemplified by the following drawings and detailed description.

  Reference is now made to the drawings illustrating embodiments. In these drawings, similar elements are denoted by similar reference numerals.

1 is a schematic diagram of a flue gas flow treatment system according to an embodiment described herein. FIG. 1 is a cross-sectional block diagram of a nebulizer system according to an embodiment described herein. FIG. 1 is a cross-sectional block diagram of a nebulizer system according to an embodiment described herein. FIG. 1 is a cross-sectional block diagram of a nebulizer system according to an embodiment described herein. FIG. FIG. 5 is a simplified block diagram of the nebulizer system shown in FIG. 4. 1 is a cross-sectional block diagram of a nebulizer system according to an embodiment described herein. FIG.

FIG. 1 illustrates a flue gas flow treatment system 100 having a combustion chamber 110 that burns a fuel 112 such as coal to produce a flue gas stream 114. The flue gas stream 114 may include contaminants such as, but not limited to, particles, sulfur oxides (SOx), nitrogen oxides (NOx), mercury, carbon dioxide (CO ₂ ). Prior to being released from the chimney 120 or other exhaust system to the environment, the flue gas stream 114 is typically subjected to treatment to remove or reduce contaminants contained therein.

  In one embodiment, the flue gas stream 114 proceeds to the spray-drying absorber 130 as shown in FIG. Although not shown in FIG. 1, the flue gas stream 114 may pass through one or more devices, such as an air preheater, before being introduced into the spray drying absorber 130.

  In the spray-drying absorber 130, the flue gas stream 114 removes acidic components such as SOx, hydrogen chloride (HCl), hydrogen fluoride (HF), and hydrogen bromide (HBr) from the flue gas stream and is acidic. It interacts with reagents that facilitate producing a flue gas stream 140 with reduced gas levels. As shown in FIG. 1, the flue gas stream 140 with reduced acid gas levels is supplied to the particle removal device 150 before being released to the environment via the chimney 120. The particle removing device 150 may be a bag house, an electrostatic precipitator (ESP), a mechanical precipitator, or the like. The flue gas flow treatment system 100 is not limited by the process described in this embodiment, and the flue gas flow 140 with a reduced level of acid gas is not limited to other flue gas treatment devices (limited). Although not a thing, you may pass a NOx removal apparatus, a cooling tower, an air preheater, etc.).

  Removal of acidic components from the flue gas stream 114 is often done to comply with emission regulations. In one embodiment, the acidic component present in the flue gas stream 114 is provided by supplying the flue gas stream to the spray-drying absorber 130 where it is contacted with the mist reagent 132 produced by the nebulizer system 160. Removed. The mist reagent 132 facilitates the absorption of acidic components present in the flue gas stream 114.

  As shown in FIGS. 2-5, the nebulizer system 160 includes a spray disc 162 that is rotatably coupled to a support member 161. In one example, the support member 161 has a rotating shaft 161a housed in a fixed housing 161b, and the spray disc 162 is coupled to the rotating shaft. The nebulizer system 160 is a dual feed system having a first supply line 163 and a second supply line 164.

  The first supply line 163 delivers a reagent slurry or solution 163a (hereinafter referred to as reagent slurry) to a delivery region 165 in the nebulizer system 160. Reagent slurry 163a may include a liquid, such as water, and any reagent that facilitates the absorption and removal of acidic components from flue gas stream 114. In one example, the reagent slurry 163a may include lime (calcium hydroxide) as a reagent. In another example, the reagent slurry 163a may include activated carbon as a reagent. In yet another example, the reagent slurry 163a may include a combination of lime and activated carbon as a reagent.

  The second supply line 164 delivers the diluent 164a to the delivery region 165 in the nebulizer system 160. In one embodiment, diluent 164a is water. In another embodiment, diluent 164a is untreated water from a cooling tower (not shown) in flue gas flow treatment system 100. In yet another embodiment, the diluent 164a is treated fresh water (drinking water) or untreated water from cooling towers, wells, rivers, or in or assisting with the flue gas flow treatment system 100. Other wastewater from the treatment process can be.

  In one embodiment, reagent slurry 163a and diluent 164a are sent to nebulizer system 160 at equal flow rates. The flow rates of reagent slurry 163a and diluent 164a may vary from system to system and may vary depending on user requirements, application of the nebulizer system 160, and the capabilities (eg, size and power) of the nebulizer system.

  In one example, the reagent slurry 163a and diluent 164a are sent to the nebulizer system at equal flow rates where the combined total flow rate does not exceed 200 gallons per minute (gpm). For example, the reagent slurry 163a may be supplied at a flow rate of 100 gpm, the diluent 164a may be supplied at a flow rate of 100 gpm, and the total flow rate may be 200 gpm. The flow rate is not limited in this respect, and the reagent slurry 163a and the diluent 164a may be combined in any flow rate of about 200 gpm or less (for example, the reagent slurry flow rate is 10 gpm, the diluent flow rate is 10 gpm; the reagent slurry flow rate is 50 gpm) and the flow rate of the diluent can be supplied at 50 gpm).

  In another embodiment, reagent slurry 163a and diluent 164a are sent to nebulizer system 160 at different flow rates. The flow rates of reagent slurry 163a and diluent 164a may vary from system to system and may vary depending on user requirements, application of the nebulizer system 160, and the capabilities (eg, size and power) of the nebulizer system.

  In one example, reagent slurry 163a and diluent 164a are delivered to nebulizer system 160 at different flow rates, with a combined total flow rate not exceeding 200 gallons per minute (gpm). For example, the reagent slurry 163a may be supplied at a flow rate of about 50 gpm and the diluent 164a may be supplied at a flow rate of about 150 gpm so that the total flow rate is about 200 gpm. The flow rate is not limited in this regard, and the reagent slurry 163a and diluent 164a can be flowed in any combination of up to about 200 gpm (eg, the reagent slurry flow rate is about 10 gpm and the diluent flow rate is about 25 gpm; The flow rate is about 50 gpm, the flow rate of diluent is about 60 gpm; the flow rate of reagent slurry is about 18 gpm, the flow rate of diluent is about 28 gpm; the flow rate of reagent slurry is about 22 gpm, the flow rate of diluent is about 19 gpm; The flow rate of the diluent is about 19 gpm, the flow rate of the diluent is about 25 gpm; the flow rate of the reagent slurry is about 17 gpm, and the flow rate of the diluent is about 24 gpm).

  The flow rates of reagent slurry 163a and diluent 164a can be controlled by a controller 200 that can communicate with one or more valves 210, as shown in FIG. The controller 200 may be preprogrammed to control the flow rates of reagent slurry 163a and diluent 164a. Alternatively, the flow rate may be changed or set by giving an instruction to the controller 200 by an operator command 220. For example, the controller 200 can selectively open and close one or both of the valves 210 such that more or less reagent slurry 163 and / or diluent 164a is supplied to the nebulizer system 160. . The controller 200, the valve 210, and the operator command 220 are shown only in FIG. 2, but can be adopted in any of the embodiments shown in this specification.

  The delivery region 165 is disposed within the nebulizer system 160 to reduce scale formation caused by the interaction of reagent slurry 163a and diluent 164a. Delivery region 165 is positioned proximate to spray disc 162 to reduce scale build-up that occurs in nebulizer system 160.

  As is generally known, scale deposits are formed when reagent slurry 163a and diluent 164a interact. The formation of scale deposits clogs the nebulizer system 160, necessitating periodic shutdown of the nebulizer system for maintenance and cleaning. It has been found that maintaining the reagent slurry 163a and diluent 164a in the nebulizer system 160 for as long as possible reduces the formation of scale.

  One method of separating the reagent slurry 163a and the diluent 164a is to independently control the delivery of each of the reagent slurry and diluent to the delivery region 165 located proximate to the spray disc 162, and the delivered reagent slurry and The diluting solution is atomized by the spray board 162 so that the mist reagent 132 is formed.

  In a particular example, as shown in FIG. 2, the delivery region 165 consists of a fixed device positioned above and near the surface of the spray disc 162. The delivery region 165 may be a stationary plate having a groove, conduit, or multiple orifices proximate to the surface of the spray disc 162. In this embodiment, reagent slurry 163a and diluent 164a are delivered separately to delivery region 165 via first supply line 163 and second supply line 164, respectively. When delivered to delivery region 165, reagent slurry 163a and diluent 164a interact and are supplied to spray disc 162 as spray solution 170 where they are atomized to produce atomized reagent 132.

  In another example, as shown in FIG. 3, the delivery region 165 consists of the interior chamber 166 of the liquid distributor 167 of the nebulizer system 160. The liquid distributor 167 is coupled to the support member 161 at a position above the surface of the spray disc 162 and close to the surface. In one embodiment, the liquid distributor 167 is fixed to a fixed housing 161b. The nebulizer system 160 is not limited to the particular device described, and it is contemplated that the liquid distributor 167 can be rotatably coupled to the support member 161.

  As shown in FIG. 3, the first supply line 163 delivers the reagent slurry 163 a to the inner chamber 166 of the liquid distributor 167. The diluent 164a is delivered to the internal chamber 166 of the liquid distributor 167 separately and independently via the second supply line 164. The reagent slurry 163a and the diluent 164a interact in the internal chamber 166 of the liquid distributor 167, and then are sent to the spray plate 162 to be atomized.

  In one embodiment, the liquid distributor 167 has an opening 168. This opening 168 extends from the inner chamber 166 of the liquid distributor 167 to the outer portion 169 of the liquid distributor. The opening 168 is arranged at a position close to the spray board 162. In FIG. 3, the opening 168 disposed on the right side of the support member 161 is shown, but the nebulizer system 160 is not limited in this regard, and the opening 168 is located in the liquid distributor proximate to the spray disc 162. It may be placed at any point on the outer portion 169.

  In FIG. 3, the reagent slurry 163a and the diluent 164a are supplied to the inner chamber 166 of the liquid distributor 167, where they contact and interact to form the spray liquid 170. The spray liquid 170 flows through the opening 168 and exits from the internal chamber 166 of the liquid distributor 167 to the spray board 162. The spray liquid 170 is atomized by the spray board 162 to generate a mist-like reagent 132.

  In another embodiment, as shown in FIG. 4, the liquid distributor 167 has a first opening 168 and a second opening 168 '. Each of the first and second openings 168, 168 ′ extends from the inner chamber 166 of the liquid distributor 167 to the outer portion 169. As shown in FIG. 4, the first opening is located on the opposite side of the first supply line 163, and the second opening 168 ′ is located on the opposite side of the second supply line 164. Both the first and second openings 168, 168 ′ are disposed in proximity to the spray platen 162.

  FIG. 4A shows a simplified block diagram of FIG. As shown in detail in FIG. 4A, the interior chamber 166 of the liquid distributor 167 may have a barrier 172 located between the first opening 168 and the second opening 168 '. The barrier 172 separates the interaction between the reagent slurry 163a and the diluent 164a delivered to the interior chamber 166 of the liquid distributor.

  In one embodiment, the barrier 172 may be a scale barrier that is formed in the interior chamber 166 of the liquid distributor 167 as the reagent slurry 163a interacts with the diluent 164a. The scale barrier 172 separates the reagent slurry 163a from the diluent 164a so that the majority of the spray liquid is formed beyond the outer portion 169 of the liquid distributor 167. Although only two openings 168, 168 'are shown in FIGS. 4 and 4A, the liquid distributor is not limited in this respect, and there may be more than two openings.

  The scale barrier 172 is formed by controlling the flow rates of the reagent slurry 163a and the diluent 164a. Forming a scale barrier 172 within the interior chamber 166 of the liquid distributor 167 without the formation of a large amount of scale deposits that would require the nebulizer system 160 or the flue gas treatment system 100 to be shut down by controlling the flow rate. Can do.

  After the scale barrier 172 is formed in the inner chamber 166 of the liquid distributor 167, the reagent slurry 163a delivered to the inner chamber 166 of the liquid distributor 167 does not react with the diluent 164a, and does not react with the first opening 168. Through and flows to the spray platen 162. Similarly, the diluent 164a delivered to the internal chamber 166 of the liquid distributor 167 exits through the second opening 168 'and flows to the spray disc 162 without reacting with the reagent slurry 163a. The reagent slurry 163a and the diluent 164a interact in the spray platen 162 to form the spray solution 170. The spray liquid 170 is atomized to form a mist reagent 132.

  In another embodiment, the barrier 172 is a manufactured barrier that is installed in the interior chamber 166 of the liquid distributor 167 when the nebulizer system 160 is assembled or modified. The manufactured barrier functions similarly to the scale barrier, separating the reagent slurry 163a from the diluent 164a, and the reagent slurry enters the interior chamber 166 of the liquid distributor 167 and exits from the first opening 168 so that the diluent is Allows entry into the interior chamber and out of the second opening 168 '.

  As shown in FIG. 5, in another embodiment, the first opening 168 and the second opening 168 'are arranged concentrically with each other. By arranging the first opening 168 and the second opening 168 ′ in a concentric manner, the reagent slurry 163 a and the diluent 164 a are separately sent to the spraying plate 162, where they are atomized to form a mist-like reagent 132. Can do.

  By arranging the first opening 168 and the second opening 168 'in this way, the nebulizer system 160 can operate without any problem even if the flow rates of the reagent slurry 163a and the diluent 164a are not equal. For example, by arranging the first opening 168 and the second opening 168 'in this manner, the spray disc 162 can rotate with little or no instability, ie vibration.

  Delivering diluent 164a and reagent slurry 163a separately reduces the need to shut down the nebulizer system for maintenance and cleaning, thereby facilitating continuous operation of the nebulizer system and flue gas flow treatment system 100 Is done. Further, control of the flow rate of the diluent 164a and reagent slurry 163a allows the nebulizer system 160 to operate with little or no disturbance such as vibration of the spray disc 162.

  The following example illustrates one embodiment of a nebulizer system according to the present disclosure used in a flue gas flow treatment system.

Example 1
For analysis of the nebulizer system according to the embodiments disclosed herein, a nebulizer system having a liquid distributor with two supply lines coupled was installed in the spray-drying absorber. The first supply line sent reagent slurry containing calcium hydroxide and water, and the second supply line sent diluent containing waste water from the cooling tower of the flue gas treatment system. The liquid distributor had at least two openings, one of which was located on the opposite side of the first supply line and the second of these openings was located on the opposite side of the second supply line.

  The reagent slurry and diluent are sent to the liquid distributor and interact to form a scale barrier in the liquid distributor, so that the reagent slurry and diluent that subsequently enter the liquid distributor are kept separate from each other. did. The reagent slurry exited the liquid distributor through the opening on the opposite side of the first supply line, and the diluent exited the liquid distributor through the opening on the opposite side of the second supply line. After exiting the liquid distributor, the reagent slurry and diluent interacted and were atomized with a spray plate to form a mist reagent.

  Six separate trials were performed to see if there was any operational disturbance in the nebulizer system and if the cleaning and maintenance intervals could be delayed.

  In each of the 6 trials, the reagent slurry and diluent flow rates were not the same. In the first trial, the reagent slurry flow rate was 18.93 gallons / minute (gpm) and the diluent flow rate was 28.17 gpm. In the second trial, the flow rate of the reagent slurry was 22.4 gpm and the flow rate of the diluent was 19 gpm. In the third trial, the reagent slurry flow rate was 19 gpm and the diluent flow rate was 25 gpm. In the fourth trial, the reagent slurry flow rate was 17.85 gpm and the diluent flow rate was 24.67 gpm. In the fifth trial, the reagent slurry flow rate was 13.17 gpm and the diluent flow rate was 22.39 gpm. In the sixth trial, the reagent slurry flow rate was 12.21 gpm and the diluent flow rate was 28.43 gpm. These trials were conducted over approximately 6 weeks.

Table 1 shows the various flow rates and the resulting spray disc vibration. No nebulizer system cleaning or maintenance was required between trials or after the sixth final trial. Chart 1 shows the relationship between the opening of the valve (percentage of opening of the valve) and the flow rates of the diluent and reagent slurry.

  Although the invention has been described with reference to various embodiments, it will be understood by those skilled in the art that various modifications can be made without departing from the scope of the invention, and equivalent elements may be substituted. be able to. In addition, various modifications may be made to adapt a particular state or material according to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiment disclosed as the best mode for carrying out the present invention, but includes all embodiments belonging to the scope of the claims.

Claims (20)

A support member (161);
A spray plate (162) rotatably coupled to the support member (161);
First supply line (16) for delivering reagent slurry (163a) to delivery region (165)
3) and
A nebulizer system (160) for use in a spray-drying absorber (130) having a second supply line (164) for delivering a diluent (164a) to the delivery area (165), the delivery area (165) is proximate above the spray plate (162) in the nebulizer system (160) to reduce the formation of scale caused by the interaction of the reagent slurry (163a) and the diluent (164a). A nebulizer system (160), which is an anchoring device arranged, wherein the reagent slurry (163a) and the diluent (164a) interact in the delivery region (165 ). The nebulizer system (160) of claim 1, wherein the fixation device is a fixation plate . Delivery further comprising a liquid distributor (167) having an internal chamber (166) and at least one opening (168) secured to the support member (161) at a position above the spray plate (162). A region (165) is disposed in the inner chamber (166), and an opening (168) extends from the inner chamber (166) to an outer portion (169) of the liquid distributor (167), and the opening (168) The nebulizer system according to claim 1, characterized in that is located in the vicinity of the spray disc (162). A liquid distributor (167) having an inner chamber (166) and at least one opening (168) fixed to the support member (161) at a position above the spray plate (162); One opening (168) and a second opening (168 ') are provided in the liquid distributor (167) , and each of the first and second openings (168, 168') is provided in the inner chamber (166). The sprayer system (160) of claim 1 extending from an outer portion (169) of the liquid distributor (167) in the vicinity of the spray disc (162 ). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) fixed to the support member (161) at a position above the spray plate (162); At least one opening (168) includes a first opening (168) and a second opening (168 '), wherein the first opening (168) is concentrically arranged with the second opening (168'). The nebulizer system (160) of claim 1, wherein the nebulizer system (160). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) fixed to the support member (161) at a position above the spray plate (162); At least one opening (168) includes a first opening (168) and a second opening (168 '), the first opening (168) being disposed opposite the first supply line (163); The nebulizer system (160) of claim 1, wherein the second opening (168 ') is disposed on an opposite side of the second supply line (164). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) fixed to the support member (161) at a position above the spray plate (162); At least one opening (168) includes a first opening (168) and a second opening (168 '), the first opening (168) being disposed opposite the first supply line (163); The second opening (168 ′) is disposed on the opposite side of the second supply line (164), and the reagent slurry (163a) is added to the diluent in the internal chamber (166) of the liquid distributor (167). (164a) is contacted to form a scale barrier (172) in the internal chamber (166), and the scale barrier (172) is the reagent slurry (in the internal chamber (166) of the liquid distributor (167)). Sprayer system according to claim 1, characterized in that 63a) and separating the further interaction of the diluent (164a) (160). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) fixed to the support member (161) at a position above the spray plate (162); At least one opening (168) includes a first opening (168) and a second opening (168 '), the first opening (168) being disposed opposite the first supply line (163); The second opening (168 ′) is disposed on the opposite side of the second supply line (164), a barrier (172) is disposed in the inner chamber (166) of the liquid distributor (167), and the liquid distribution The nebulizer system (160) of claim 1, wherein the interaction of the reagent slurry (163a) and the diluent (164a) in the internal chamber (166) of the vessel (167) is separated. The apparatus further includes a controller (200) and at least one valve (210), wherein the controller (200) controls the flow rate of the reagent slurry (163a) and the diluent (164a) to the delivery region (165). The nebulizer system (160) of claim 1, wherein the nebulizer system (160) is configured as follows. The nebulizer system (160) of claim 1, wherein the reagent slurry (163a) comprises calcium hydroxide. A method for reducing scale formation in an atomizer system (160) comprising:
A nebulizer system (160) having a support member (161), a delivery region (165), a spray disc (162), a first supply line (163), and a second supply line (164) is treated with flue gas. Providing in the system (100);
Sending reagent slurry (163a) to the nebulizer system (160) such that the reagent slurry (163a) is delivered to the delivery region (165) through the first supply line (163);
Sending a diluent (164a) to the nebulizer system (160) such that the diluent (164a) is delivered to the delivery region (165) through the second supply line (164);
Proximity above the spray disc (162) in the nebulizer system (160) to reduce scale formation caused by the interaction of the reagent slurry (163a) and the diluent (164a ) as the delivery region (165) how the locking device arranged, wherein the reagent the diluent slurry (163a) in the delivery area (165) and (164a) has a Luz step to interact. The method of claim 11, wherein the reagent slurry (163a) and the diluent (164a) are sent to the nebulizer system (160) at different flow rates. 12. The method of claim 11, wherein the reagent slurry (163a) and the diluent (164a) are sent to the nebulizer system (160) at equal flow rates. A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. And (168) further extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) so as to be positioned in the vicinity of the spray platen (162). The method according to claim 11. A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
Providing the first supply line (163) and the second supply line (164) to the internal chamber (166) of the liquid distributor (167);
Delivering the reagent slurry (163a) to the internal chamber (166) of the liquid distributor (167) through the first supply line (163);
12. The method of claim 11, further comprising delivering the diluent (164a) through the second supply line (164) to the internal chamber (166) of the liquid distributor (167). . A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
Mixing the reagent slurry (163a) and the diluting liquid (164a) in the internal chamber (166) of the liquid distributor (167) to form a spray liquid (132);
12. The method of claim 11, further comprising delivering the spray liquid (132) to the spray disc (162) through the at least one opening (168) of the liquid distributor (167). . A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
Mixing the reagent slurry (163a) and the diluent (164a) in the internal chamber (166) of the liquid distributor (167);
A scale barrier (172) is formed in the inner chamber (166), and the reagent slurry (163a) and the diluent (164a) further interact in the inner chamber (166) of the liquid distributor (167). 12. The method of claim 11, further comprising the step of separating. A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
A first opening (168) is disposed in the liquid distributor (167) on the opposite side of the first supply line (163), and a second opening (168 ′) on the opposite side of the second supply line (164). ) In the liquid distributor (167). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
The reagent slurry (163a) and the dilution liquid (164a) are separated from the liquid distributor (167) so that the reagent slurry (163a) and the dilution liquid (164a) are maintained separately by a barrier (172). Delivering to the internal chamber (166);
Flowing the reagent slurry (163a) through the first opening (168) to the spray plate (162);
12. The method of claim 11, further comprising the step of flowing the diluent (164a) through a second opening (168 ') to the spray platen (162). A liquid distributor (167) having an internal chamber (166) and at least one opening (168) is secured to the sprayer system (160) at a position above the spray platen (162) and the at least one opening. (168) extending from the inner chamber (166) to the outer portion (169) of the liquid distributor (167) and being located in the vicinity of the spray plate (162);
A barrier (172) is disposed in the inner chamber (166) of the liquid distributor (167), and the reagent slurry (163a) and the diluent (164a) in the inner chamber (166) of the liquid distributor (167). 12. The method of claim 11, further comprising the step of isolating the interaction.

Images